0749-6419/$ see front matter 2010 Elsevier Ltd doi:10.1016/j.ijplas.2010.02.001 * Corresponding author. E-mail addresses: [email protected] (K. Kang We present molecular dynamics simulations of [110]-oriented Si nanowires (NWs) under a constant strain rate in tension until failure, using the modified embedded-atom-method (MEAM) potential. The fracture behavior of the NWs depends on both tempe...

Two titanium alloy wing attachment bolts from a commercial jetliner failed during the course of a routine service operation. Failure of the bolts occurred during the re-torque process as the wing was being reattached. Metallurgical failure analysis indicated that the fracture mechanism was ductile overload and that the mechanical properties of the bolts were consistent with exemplar bolts that ...

Abstract Ductile damages often happen on metal structures under large deformations. In the current paper, ductile damage criteria are discussed from microscopic mechanism to fracture models. Abaqus FEA makes easy be applied for practical problems. Therefore, paper finally presents detailed implementation of in describe and degradation, simulating failure process with higher fidelity.

Notched tensile bars of a high strength structural steel were loaded to void coalescense. The resuIts show that the damage curve determined using radially loaded specimens is not valid for specimens under nonradial loading. The results of the experiments with different load histories of notched tensile bars show, that a single parameter criterion like a damage parameter is not sufficient to des...

This study numerically predicts the failure scenario of a cracked concrete gravity dam through a push-over nonlinear analysis. The mixed-mode Linear Elastic Fracture Mechanics (LEFM) was employed using the extended finite element method (XFEM). The dam base was considered to be fully fixed without any foundation effects. The hydrostatic pressure on the dam's upstream face was increased incremen...